Visit this link:
http://www.alistapart.com/articles/prefix-or-posthack/
I’m generally strongly opposed to vendor prefixes purely because of the additional time/effort they require and their varied intricacies. But it’s hard to argue with Mr. Meyer on this.
We ought to praise vendors for using prefixes, and indeed encourage them to continue. Beyond that, I hold that prefixes should become a central part of the CSS standardization process. I do this not for the love of repetition, but out of a desire to see CSS evolve consistently. I believe that prefixes can actually accelerate the advancement and refinement of CSS.
